SOLUTION: the theoretical proportion of heads should be 50% in flips of a coin. The law of large numbers says that as you flip more coins the closer the observed proportion will be to 50%

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Question 199840: the theoretical proportion of heads should be 50% in flips of a coin. The law of large numbers says that as you flip more coins the closer the observed proportion will be to 50%
How likely do you think it is to flip 85 heads and 15 tails in flips of a coin?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
this is a binomial expansion problem

where "h" is the probability of a head and "t" is the probability of a tail, using 100 (85+15) flips

100C85(h^85)(t^15) or 2x10^-13 (approx)